diff --git a/rhodecode/model/scm.py b/rhodecode/model/scm.py
--- a/rhodecode/model/scm.py
+++ b/rhodecode/model/scm.py
@@ -322,11 +322,10 @@ class ScmModel(BaseModel):
 
         :param repo_name: the repo for which caches should be marked invalid
         """
-        invalidated_keys = CacheInvalidation.set_invalidate(repo_name)
+        CacheInvalidation.set_invalidate(repo_name)
         repo = Repository.get_by_repo_name(repo_name)
         if repo:
             repo.update_changeset_cache()
-        return invalidated_keys
 
     def toggle_following_repo(self, follow_repo_id, user_id):